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Finding the Fourth Proportional to 693,837.56, 957,655.86 and 451,698.50

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Solution

The fourth proportional to 693,837.56, 957,655.86 and 451,698.50 is: 623,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,837.56 : 957,655.86 = 451,698.50 : x
  2. Step 2: Convert to fraction form
    693,837.56/957,655.86 = 451,698.50/x
  3. Step 3: Cross multiply
    693,837.56x = 957,655.86 × 451,698.50
  4. Step 4: Simplify right side
    693,837.56x = 432,571,715,478.21
  5. Step 5: Solve for x
    x = 432,571,715,478.21/693,837.56
  6. Step 6: Final answer
    x = 623,448.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.